Junus2012
Advanced Member level 5
Dear friends,
attached the two CMFB amplifier in which I want to compare,
the first one can give maximum cuurent to correct the output common mode voltage of 2Ib as it is a diode connected load to the control transistor M5.
in the second circuit the control transistor M5 is connected to the drain of M4 like of two stage ampliifer, thus the ouput controlling currrent can be more than 2 Ib if that was neccessary for correction.
Is that true ? if it then I can say regardless the gain and accuracy different of the two circuits, the second one can adjust the circuit for more mismattching if happeining
thnak you
attached the two CMFB amplifier in which I want to compare,
the first one can give maximum cuurent to correct the output common mode voltage of 2Ib as it is a diode connected load to the control transistor M5.
in the second circuit the control transistor M5 is connected to the drain of M4 like of two stage ampliifer, thus the ouput controlling currrent can be more than 2 Ib if that was neccessary for correction.
Is that true ? if it then I can say regardless the gain and accuracy different of the two circuits, the second one can adjust the circuit for more mismattching if happeining
thnak you